Bangladesh Journal of Agricultural Research最新文献

{"title":"Impact of Foraging Insect Pollinators on Chili Production","authors":"M. Nasrin, M. Amin, M. Miah, A. Akanda, M. Miah","doi":"10.3329/bjar.v46i3.64130","DOIUrl":"https://doi.org/10.3329/bjar.v46i3.64130","url":null,"abstract":"The abundance, foraging behavior, and diurnal and seasonal dynamics of the pollinator insects in chili ecosystem, and the impact of the pollinator insects on chili production was studied at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, (BSMRAU) Gazipur, Bangladesh using the chili variety BARI Morich 2. The crop was cultivated in natural, supplemented insect and selfpollination conditions. The lime butterfly, honey bee, carpenter bee and sweat bee were found in the chili ecosystem. Honey bee depicted significantly the highest abundance and visitation frequency and carpenter bee was found as the most rapid forager. The diurnal and seasonal abundance of the pollinator insects was fluctuated and the peak abundance was found at 11.00 hour of the day. Abundance of lime butterfly, honey bee and carpenter bee revealed negative relationship with maximum and minimum temperatures, and positive relationship with relative humidity and rainfall. Abundance of sweat bee was positively correlated with maximum and minimum temperatures and rainfall, and negatively correlated with relative humidity. The chili plants exerted vulnerable response to insect pollination producing significantly the higher number of fruits per plant, fruit length, diameter and weight, number of seed per fruit, seed weight and yield. \u0000Bangladesh J. Agril. Res. 46(3): 297-306, September 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"395 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120940671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic Variability in Yield Contributing Characters Of Tossa Jute (Corchorus Capsularis L.)","authors":"A. Ghosh, B. Biswas, M. Arifuzzaman","doi":"10.3329/bjar.v46i2.64122","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64122","url":null,"abstract":"Fifty-six hybrids of Tossa jute (Corchorus olitorius L.) were raised at Hajee Mohammad Danesh Science and Technology University, Dinajpur from the parental lines O-9897, O-795, JRO-524, Acc.-2381, Acc.-3423, Acc.-3438, Acc.-3533 and Acc.-3860 and studied. Maximum 24 genotypes were in cluster II followed by 11 in I, 9 in IV, 6 in VI, 4 in V and only 2 in cluster IV and the minimum (2.871) was between the clusters IV and V. Cluster VI produced the highest mean values for all the characters indicated the higher potential. Intracluster distances were lower than inter-cluster distances, suggested less diversity within a cluster. Mahalanobis D2-statistics for genetic divergent classified those 56 genotypes into six clusters. Cluster VI showed the highest intercluster distance (23.565) with cluster I. Therefore, jute breeders may consider the hybrids having desirable trait of cluster I and VI for further improvement of Tossa jute. \u0000Bangladesh J. Agril. Res. 46(2): 195-202, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114459348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Brown Plant Hopper (Bph) Management Training on Boro Rice Cultivation In Serajganj District","authors":"M. Quayum, M. Hossain, T. Sharmin","doi":"10.3329/bjar.v46i2.64124","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64124","url":null,"abstract":"A study was conducted under the project areas of Tarash Upazila at Sirajganj district. The objectives were to assess the improvement of farmers’ knowledge and perception on different factors of BPH incidence and its management to examine the economic impact on rice and to determine the profitability of Boro rice cultivation among the different groups of farms. Out of 850 samples listed, 170 representative farmers among which 16 target, 54 trained and 100 non-trained farmers were selected respectively by stratified random sampling technique. Rice plants are affected by 20-33 major insect pests. Among them, BPH is considered as most damaging one. Eighty eight, 83 and 93% target, trained and non trained farmers reported that the project needs to continue while 100% farmers of each group reported that the project is beneficial to control BPH to increase rice production. Eighty seven, 56 and 51 % farmers of the target, trained and nontrained group used double nozzle for spraying insecticides to control BPH in their field. In boro season, 2073 kg/ha and 1209 kg/ha yield loss of BRRI dhan29 were found before and after the project, respectively. The lower yield loss was due to proper management taken by the farmers who got training and acquired sufficient knowledge for controlling BPH. The study revealed that 37% higher cost and 47% higher time is required by single nozzle sprayer than double nozzle sprayer. Therefore, farmers of all categories prefer double nozzle sprayer as it is good for health and saves money and time. They also reported that use of double nozzle sprayer is more profitable than single nozzle sprayer. Benefit cost analysis indicated that the gross return, net return and BCR were found higher in case of the target farmers and these were Tk.171107/ha, Tk.73735/ha and 1.76 respectively, but the cost of production per kg was lower (Tk.10.27) than those of the other two groups due to more knowledge gathered by the target farmers on management practices for rice production. Partial budgeting analysis indicated that the double nozzle users were more benefited by Tk 7287/ha than the single nozzle users for boro rice cultivation. Thus, after the project the farmers of all categories of the project area were socio-economically benefited learning how to use double nozzle for controlling BPH. \u0000Bangladesh J. Agril. Res. 46(2): 211-226, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126339556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gge Biplot and Ammi Analysis of Yield of Proso Millet (Panicum Miliaceum L.)","authors":"Huz Raihan, M. Billah, MI Riad, M. Sarker, M. Rohman","doi":"10.3329/bjar.v46i2.64117","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64117","url":null,"abstract":"The experiment was conducted using seven proso millet advanced lines including one check variety, BARI Cheena-1 (BC-1) across 3 locations (Gazipur, Jamalpur and Rangpur) of Bangladesh during 2019-20. The objective of this study was to find out stable proso millet lines, and to verify the influence of the environments on the yield at different locations of Bangladesh. The mean sum of squares for the genotypes were significant for grain yield which revealed the presence of genetic variability in the material under studied. The results of the AMMI analysis indicated that the main effects due to genotype (G), environment (E) and GE interaction were significant, representing differential responses of the lines to the varied environments. Based on the AMMI stability parameter BD-1447, BD-1411 and BD-777 were the most stable lines across the environments, of which BD-777 was most stable. Biplot showed that the environment of Rangpur was poor; but that of Gazipur and Jamalpur were better for proso millet cultivation. Results also suggested that BD-1447, BD-1411 and BD-777 could be included in breeding programs due to their higher grain yield. \u0000Bangladesh J. Agril. Res. 46(2): 133-142, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130938340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Soil and Foliar Application of Plant Nutrients on Purple Blotch and Tip-Burn of Onion","authors":"M. Faruk","doi":"10.3329/bjar.v46i2.64119","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64119","url":null,"abstract":"An experiment was conducted in the field of Plant Pathology Division, BARI, Cazipur, during Robi 2015-16, 2016-17 and 2017-18 cropping seasons to evaluate the efficacy of available plant nutrients against purple blotch disease and tip-burn of onion. Eight different plant nutrients viz. Potassium (ZnSO4 fertilizer), Phosphorus (TSP fertilizer), Boron (Boron fertilizer), Zinc (ZnSO4 fertilizer), Calcium (CaSO4 fertilizer), Copper (CuSO4), Silicon (silica gel) and Manganese (MnSO4 fertilizer) were tested against purple blotch disease and tip-burn of onion. Soil and foliar application of plant nutrients viz. Potassium, Phosphorus, Boron, Zinc, Calcium, Copper, Silicon and Manganese in the formed of water solution gave appreciable reduction of purple blotch disease and tip-burn incidence and increased plant growth such as shoot and root growth as well as yield of onion. Among the nutrients solution Potassium, Phosphorus, Silicon, Zinc and Calcium were performed better for reducing purple blotch disease severity (upto 62.78%), tip-burn incidence (upto 72.22%) and increasing plant growth as well as yield of onion. Application of Boron and Manganese also performed better than control. So, soil and foliar application plant nutrients viz. Potassium, Phosphorus, Silicon, Zinc, Boron and Manganese might be recommended for tip-burn and purple blotch disease management and also for onion production in Bangladesh.\u0000Bangladesh J. Agril. Res. 46(2): 153-165, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121840198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suitability of Medium Density Fiber Board Made From Rubber Wood for Household and Industrial Use","authors":"MM Rahman, S. Hossain, M. S. Islam, M. Uddin","doi":"10.3329/bjar.v46i2.64123","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64123","url":null,"abstract":"The use of fiber board is increasing due to limited supply of timer wood. This study investigated the suitability of medium density fiber board (MDF) made from rubber wood for household and industrial use. Rubber wood was collected from Bangladesh Forest Development Corporation (BFIDC), Chattogram. Single layer fiber boards were fabricated by five different densities, such as 700, 725, 750, 775 and 800 kgm-3. The mechanical and physical properties of medium density fireboards fabricated by rubber wood fiber as a raw material and urea formaldehyde as a resin were studied. The performance of composite was evaluated by its mechanical and physical properties. Experimental investigation indicated that the mechanical strength of medium density fiber board such as modulus of rupture (MOR) and tensile strength increased with increasing board density. The bending strength (188-234kgcm-2) passed the Indian, German and British standard while the tensile strength (4.20-4.70kgcm-2) passed the German and British Standard specification. The research concluded that 800kgm-3 fiber board made from rubber wood had the best modulus of rupture (234 kgcm-2) and the highest tensile strength (4.70 kgcm-2) among all other single layer medium density fiber boards. \u0000Bangladesh J. Agril. Res. 46(2): 203-209, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128721759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Farmers’ Attitude Towards Environment Friendly Vegetable Cultivation","authors":"PD Purkaysto, M. Amin, Ma Islam, Mohammad Chhiddikur Rahman, F. Nasim","doi":"10.3329/bjar.v46i2.64121","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64121","url":null,"abstract":"The study was conducted to determine farmers’ attitude towards environment friendly vegetable cultivation and to explore the relationship of the selected characteristics with farmers’ attitude. The study also identified constraints faced by farmers in relation to environment friendly vegetable cultivation. Data were collected from 100 randomly selected respondents of three selected villages under Sadar upazila of Moulvibazar district using a pre-tested interview schedule during February-March 2018. Farmers’ attitude towards environment friendly vegetable cultivation (dependent variable) and was measured by 20 statements on 5-point scale and the eleven selected characteristics of the respondents. The highest proportion (40%) of the respondents had unfavorable attitude, 20% respondents had highly unfavorable attitude, 1% of them had neutral attitude, while 33% respondents had favorable attitude and 6% had highly favorable attitude towards environment friendly vegetable cultivation. The correlation analysis revealed that education, training received, time spent in vegetable cultivation, annual family income, annual income from vegetable cultivation, knowledge on environment friendly vegetable cultivation, organizational participation and credit received had significant positive relationship with the farmers’ attitude towards environment friendly vegetable cultivation. The majority (70%) of the farmers faced medium constraints while 3% faced high and 27% faced low constraints during environment friendly vegetable cultivation. \u0000Bangladesh J. Agril. Res. 46(2): 175-193, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128200506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of Different Approaches to Control Litchi Fruit Borer","authors":"M. Taher, M. Uddin, K. Islam, M. Rahman","doi":"10.3329/bjar.v46i2.64118","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64118","url":null,"abstract":"Litchi is affected by number of pests, among them litchi fruit borer (LFB), Conopomorpha sinensis Bradley (Lepidoptera: Gracillariidae) is serious one which causes considerable yield loss. This study aimed to evaluate the efficacy of different options for the management of LFB. The research work was conducted in an orchard at Gopalpur under Tangail district of Bangladesh consecutively for two seasons to manage LFB using mosquito net, two types of bags, three botanicals and five synthetic insecticides as spray material to find out the most efficient one based on the highest reduction of fruit infestation (RFI) over control along with benefit cost ratio (BCR). White butter paper bagging showed highest RFI (100%) with 51.66% increase of fresh fruit (FF) over control and BCR 7.47:1. Neem oil was significantly effective in RFI over control (78.73%) with BCR 8.67:1. Novastar 56 EC (Bifenthrin+ Abamectin) was the most effective among the chemical treatments recording 98.08 % RFI with increase of 51.18 % FF over control and BCR 6.06:1. Based on BCR, performance of different treatments could be ranked as Neem oil > Paper bagging > Novastar. So, Paper bagging as safe technique, Neem oil at the rate of 6 ml/L of water as an eco-friendly tactic and Novastar 56 EC @ 1 ml/L of water as least harmful approach could be recommended to protect litchi from the attack of LFB and ensure higher number of fresh fruits. \u0000Bangladesh J. Agril. Res. 46(2): 143-151, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125244163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Purity Level of Different Brands of Marketed Pesticides","authors":"M. Afroze, M. Prodhan, A. Begum, M. Ahmed, D. Sarker","doi":"10.3329/bjar.v46i2.64120","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64120","url":null,"abstract":"The study was undertaken to determine the purity level of eleven selected pesticides collected from different locations of Bangladesh. In this study, Gas Chromatography coupled with Flame Ionization Detector (FID) and Electron Captured Detector (ECD) was used to determine the purity of acephate, diazinon, dimethoate, chlorpyrifos, quinalphos, malathion, fenitrothion cypermethrin, fenvalerate. High Performance Liquid Chromatography (HPLC 20A Prominence) coupled with Photo Diode Array (PDA) detector was used to determine the purity of carbofuran and carbosulfan. Results indicated that 40% of the tested pesticides have lower active ingredient (ai) than stated on the label of container. A total of 11 pesticides were tested. The purity of all tested brands of fenvalerate and fenitrothion were 100%. The purity of cypermethrin ranged from 72-100%. The purity of organocarbamate pesticide carbofuran and carbosulfan ranged from 70-100% and 95-100%, respectively. The purity of dimethoate, chlorpyrifos, malathion, quinalphos, diazinon and acephate ranged from 63-100%, 67-100%, 79-100%, 83-100% and 68-100%, respectively. \u0000Bangladesh J. Agril. Res. 46(2): 167-174, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123460459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production Potential of Sweet Potato Based Intercropping System in Sylhet Region","authors":"M. Nazrul","doi":"10.3329/bjar.v46i2.64116","DOIUrl":"https://doi.org/10.3329/bjar.v46i2.64116","url":null,"abstract":"A field experiment was conducted during two consecutive years 2017-18 and 2018-19 at farming system research and development (FSRD) site, under South Surma Upazilla of Sylhet in Bangladesh to find out the suitable crop combination for increasing total productivity, return and maximizing land utilization through intercropping. Five treatments viz. T1: Sweet potato + red amaranth, T2: Sweet potato + leaf amaranth, T3: Sweet potato + mustard green, T4: Sweet potato + mustard and T5: Sweet potato sole (100% sweet potato) were considered in the experiment. Results showed none of the intercrop-combination influenced the root yield of sweet potato. Tuberous root yield of sweet potato in 100% sweet potato + 100% mustard green combination was at per sweet potato sole cultivation. Sweet potato yield did not reduce significantly due to intercropping. The highest sweet potato equivalent yield (41.75 t ha-1), land equivalent ratio (1.37), gross return (Tk. 625950 ha-1), gross margin (Tk. 495500 ha-1) and benefit cost ratio (4.80) were recorded from sweet potato 100% + mustard green 100% combination. On the contrary, sweet potato sole gave the lowest sweet potato equivalent yield (30.60 t ha-1), gross margin (Tk.330300 ha-1) and benefit cost ratio (3.57). The results revealed that sweet potato 100% + mustard green 100% intercropped combination might be suitable for higher productivity and economic return. \u0000Bangladesh J. Agril. Res. 46(2): 123-131, June 2021","PeriodicalId":103111,"journal":{"name":"Bangladesh Journal of Agricultural Research","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128091538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}